mso-fareast-font-family:"?? ??";mso-fareast-theme-font:minor-fareast;
mso-bidi-font-family:"Times New Roman";color:#3A343A;mso-ansi-language:EN-US;
mso-fareast-language:EN-US;mso-bidi-language:AR-SA">Q. Which of the following substances show the presence of more than one type of bonding.